@charset "utf-8";

body,h1,h2,h3,h4,h5,h6,p,ul,ol,dl,dt,dd,li,form,button,input,img{margin:0; padding:0;}
/* img{vertical-align: bottom;} */
ul,ol{list-style:none;}

.container{width:1200px; margin:0 auto;}
body{background:#f2f2f2;}

a:link, a:visited{color:#666; text-decoration:none;}
a:hover{color:#00a7ea;}

.cf::after{content:''; display:block; clear:both;}
#top{
        width: 40px;
        height: 40px;
        background:#f00;
        color: #fff;
        position: fixed;
        bottom: 20px;
        right: 20px;
        padding: 10px;
        text-align: center;
        cursor: pointer;
        display: none;
    }

nav .selected{
        width: 90px;
        height: 60px;
        color: #fff;
        text-align: center;
        line-height: 60px;
        background: #4a85e9;
        display: inline-block;
}
